Air washer and humidifier



Fd). 23,. 1932. R. A.,|LG 1,846,057

AIR WASHER AND HUM'IDIFIER I Filed .April 2s. 1929 lith ldd, "wml uw" i llpplleirton nled dprll titl,

"'s intention relates to devices for inois ond purilyingl dir such es dre quite only employed in connection With vensystems, sind lies reference inore icnll'irly to on oir Washer end humidilier general type disclosed in 'my Adornier ers .Potent lilo. 1,309,737, dated duly lliy llldlttu i. generell object ot the present invention lll g o improve the device oit niy loriner potent l y melting; it more eilicient ond perfect in its hindi'tying ed'ect on the nir passed thereu through lll/llore specic objects are, to pror'lde it device that will niore thoroughly elim 1, dirt end eircess nioisture from the stir9 e it device that will permit the dirt encess inoistnre eliminator to be op ly employed or omitted Without intiny chantre or :lnodilicstion ol the i the opperotus, ond to provide e de 'wherein the dirt ond encess moisture i iininstor con be reodily retracted tor cleonelften es required.

l other objects ond ottendont aldi/em oill the intention 'will loe apparent to ns slrilled in the ort is the sanne becomes nnderstood by reterenee to the t'olw d .iled deseription9 teilten in conechen with the rnzeornpzinyiniI dinwings in hielt l lierre i' loetroted one simple end pnic4 tieol einbodilnent ot the intention, ond "wir l is o 'eertiesl longritndiinil section ol the eel/ice, with 'the blower shown in side eletrotion g A "il en enlarged horirfxontsl section tl 'l l' l" t *tl th tie dni ini e nninii oi, rsi ,i e eel opjnssiriiitgw in top plein View;

o side elet/*stron ol the ren'iorzible to the dritt/irnfrs9 ltl indicotes es o rectangular bon or tent'.4B pret heeldnetoh thnt is open through x l: ly the ripper lnil'l oit its ends, ot dnd l2. lhoportion oit lett' ie openings is designed to ein d body ol liquid, preferably trotter, in- :oted et lil. ilonrnnled in sind between the 1 e trolls oli the ternir n peddle Wheel which lll includes n series oit redini blades or paddles ltlld. derial llilo. tlddgtllili ld carrying screens, the structural deteils et which :ire preierobly like those shown end described in iny dormer partent above referred to, including trougibshsped scoops l5 inclinem ed on the outer edges oit the paddle blades which, es the Wheel reyolves piclr up some ot' the Waiter. As each blade approaches the vertical position., the Water carried by the scoop thereotn tells down sind is distributed over the screen, thereby increasing the Volume ot Water through which the oir passes over that which merely adheres to the screen when passing;r through the Water.

Mounted opposite one end of the tanlr l0 is s centrifugal blower 16, the dischorge te mouth ol which registers with the opening ll of the tonie Attached to the top Well ot' the tenir is :in oir guide, in the torno otn e sheet-inetsl plete l?, that is pressed into the generol torni indicated in Fig. l end includes downwerdlysloping end portions 18 end sin intermediate coneeye portion 19 that is con centric with the iuris ot the peddle Wheel, and is just cleared by the outer edges ot the troughs l5 es the peddle Wheel revolves, so Y to conipel snbstsntiolly all ol the oir deliyu ered by the blower to pass through the screens.

it the delivery end oli' the tenir l provide d device which .ll terni en eliminator, the perm pose Orione-tion ot which is to assist in cletinIn inp; the dir olf pdrticles of dust and dirt which nifty t'sil to loe wished out by the peddle screens, sind also to tree the sir ot excess niels-- ture inthe torni ol" iine sprey. rlFliis eliminate 5M tor, which is preteroblyniede renioysble to permit its optionsl use and tseilitote cleon-- inp; thereol'., nioy conveniently consist oit o rectonpgulsr sheetnietal ironie coinitnrisingrl top and bottoni trolls 20 sind 2l (Fig. 3) ond end Welis 22, these letter being1 equipped with diseppeeringgI linndles 23 to' tacilitete rernoyrtl o'l the eliinins'lor trom either side oit the tsinln, lhe eliminator is equipped with one or inore longitudinal rows et vertically disposed het@ dll iles, `all oit which are disposed Widthtvise ob liquely to the direction of tlorr oil tlie sir. ll have herein shown an inner row ot screen bitttlos on intermediate row ol solid sheetinetol bottles 251, and en oiiter row ol solid l0@ l tl sheet-metal baiiies 26; but it is to be understood that the number of rows of baffles employed is entirely optional. It will further be observed by reference to Fig. 2 that the obliquity of the intermediate baiiies 25 is opposed to that` of the inner bailes 24, and the obliquity of the outer baiiies 26 is opposed to that of the intermediate baffles 25. It will further be noted that the baiiles of4 each row lying on opposite sides of the vertical median llongitudinal plane of the tank are of opposite Obliquity, with the baffles 26 of the outer row so disposed as to spread the air laterally of the tank as it emerges from the latter. Furthermore, to insure the baffle action on substantially all of the air flowing through the eliminator, the baies of the intermediate and outer rows are staggered, so that air passing between the baiies 25 is caught and acted upon by the baiiles 26. The baiiie blades 25 and 26 are also preferably formed with rearwardl curled rear edges 25 and 26', as clearly s own in Fig. 2. The screen baffles 24 break up the fine spray carried along with the air, and the curled rear edges of the bafiies 25 and 26 function as catchers for the spray and the dirt which works downwardly onto the bottom plate 21 of the eliminator frame. From time to time the frame may be removed and the baflles and bottom plate wiped free of dirt accumulations.

The eliminator frame may be supported in position within the tank by any suitable means such as angle slideways and guides 27 shown in Fig. 1.

I have also incorporated in the device a simple means for modifying the temperature of the air, the same consisting of a coil 28 preferably mounted crosswise of the rear end of the lower portion of the tank so asto be submerged by the water in the latter. Vhen it is desired to warm the air, steam may be circulated through the coil 28; and when it is desired to cool the air, cold water or brine may be circulated through the coil. In both cases the temperature of the body of water is, of course, modified and this in turn modifies the temperature of the air.

For situations where a supply of water under pressure is conveniently available, I equip the tank with a water supply pipe 29 entering through a side wall of the tank below the eliminator, and provide a iioat-controlled valve 80 on said pipe which is automatically closed when the proper level of water in the tank is reached. To guard against an excess of water in the tank in the possible event of failure of the supply valve to function properly, or in the event that no automatic su ply is used, I further equip the tank wit an overfiow pipe 3l entering the latter at the maximum level of the water.

I have herein shown and described an illustrative embodiment of the invention which will be found in practice to satisfactorily effectuate the stated purposes and obj ects thereof; but manifestly changes and modifications in structural details may be resorted to without departing from the principle of the invention, and hence I do not limit the latter to the exact form herein presented but reserve all such variations, modifications and mechanical equivalents as fall within the spirit and purview of the claims.

I claim- 1. In an air washer and humidifier, the combination of a tank adapted to contain a body of water, a paddle wheel formed with screen paddle blades journaled in and transversely of said tank and dipping into the water contained in the latter, an air propelling device communicating on its discharge side with one end of said tank, a row of screen baffles disposed across the path of the air current beyond said paddle wheel, each of said baffles being widthwise oblique to the direction of flow of the air, and a row of solid baffles beyond said screen baffles, said solid baiiies being of opposite Obliquity to said screen paddles.

.2. In an air washerand humidifier, the combination of a tank adapted to contain a body of water, a paddle wheel formed with screen paddle blades journaled in and transversely of said tank and dipping into the water contained in the latter, an air propelling device communicating on its discharge side with one end of said tank, a row of screen baiiies disposed across the path of the air current beyond said paddle wheel, and two rows of solid baffles beyond said screen baiiies, said solid bafiies lying widthwise oblique to the direction of flow of the air and the solid baiies of said two rows bein of opposite obliquities and staggered re atively to each other.

3. In an air washer and humidifier, the combination of a tank ada ted to contain a body of water, a paddle w eel formed with screen paddle blades journaled in and transversely of said tank and dipping into the water contained in the latter, an air propellin device communicating with one end of sa tank above the water level, and a removable spray and dirt eliminator comprising a frame slidably mounted in and across the other end of said tank, and a plurality of rows of narrow baflies mounted vertically in said frame, said baflles being widthwise oblique to the direction of fiow of air through said frame, and the baffles of the rear row being outwardly inclined from their front to their rear edges on opposite sides of the vertical longitudinal median plane of said tank.

4. In an air washer and humidifier-the combination of a tank adapted to contain a body of water, a paddle wheel formed with screen paddle blades journaled in and transversely of said-tank and dipping into the water contained in the latter, an air propelfl li lill ling device communicating with one end of said tank above the Water level, and a removable spray and dirt eliminator comprising a iframe slidably mounted in and across the other end of said tank, and a plurality of rows of narrow baflles mounted vertically in said trame, said bales being Widthwise oblique to the direction of flow of air through said frame, and certain of said bales having rearwardly curled rear edges serving as catchers loi* spray and dirt.

ROBERT A. ILG. 

